Tisdal & O'Hara Partners Speak at Energy and Estate Planning Seminar Mart Tisdal, Pat O'Hara and Patrick O'Hara, Jr. spoke at the Energy and Estate Planning Seminar in Clinton, Oklahoma, sponsored by First Bank & Trust Company in Clinton. At the PodiumHigh FiveJuly 30, 2018 Facebook0 Twitter Tumblr 0 Likes